gettop: Search .repo instead of envsetup files
gettop: Search .repo instead of envsetup files

 * The reference no longer applies for Android O
    and can lead to errors with build/make

Change-Id: I2205ddb1803416b1abd7d06eeacfee63d52e9c8b
Signed-off-by: Adrian DC <01fb3892f39957945220431e7409156544d2f041@gmail.com>

AdrianDC/android_development_shell_tools,AdrianDC/android_development_shell_tools